Why does buying a 6 pack cost $55 but buying 1 for $7.50 six times cost $45?

Because the single one is high mileage, not advanced synthetic.

is this oil suitable for gasoline engines with 200.000 km milage?

I'm sure it is. I have a 2004 Toyota Corolla with 100,000 miles on it. I have used various brands of fully synthetic oil in it from day 1. The car doesn't look as good as new, but the engine seems to still be performing like new.

I am seeing castrol edge 10w30 black quart and 10w30 gold quart with titanium. The gold quart is cheaper than the black. Which is better?

The 10w30 gold quart is extended performance. It should last longer in your engine before you need to change it.

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Castrol EDGE High Mileage 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Castrol EDGE High Mileage 0W-20 Advanced Full Synthetic Motor Oil, 1 Quart, Pack of 6

Product ID: 725365584

Details

Brand
Castrol
Liquid volume
1 Quarts
Package information
Bottle
SAE J300 Viscosity Grade
0W-20
Vehicle service type
Car

⛽Boosts fuel economy

🔧Optimized for 75,000+ mile engines

🛡️Titanium-strong engine protection

Description

🛢️ Drive longer, stronger, smarter with EDGE High Mileage!

HIGH MILEAGE HERO - Specifically engineered for vehicles with over 75,000 miles
FUEL ECONOMY BOOSTER - Improves mileage so you go further on every tank
LEAK DEPOSIT FIGHTER - Minimizes leaks, oil burn-off, and power-robbing deposits
EMISSION SYSTEM PROTECTOR - Phosphorus Replacement Technology safeguards catalytic converters
TITANIUM ENHANCED STRENGTH - Reinforces oil film to reduce breakdown and extend engine life

Castrol EDGE High Mileage 0W-20 is a premium full synthetic motor oil designed for vehicles with over 75,000 miles. Enhanced with advanced titanium technology, it strengthens oil film to reduce leaks, burn-off, and deposits while improving fuel economy and protecting emission systems for sustained peak engine performance.

Specifications

ASIN	B01CRYHNJC
Automotive Fit Type	Universal Fit
Best Sellers Rank	#62,214 in Automotive ( See Top 100 in Automotive ) #696 in Automotive Oils
Brand	Castrol
Brand Name	Castrol
Compatible with Vehicle Type	Car
Container Type	Bottle
Customer Reviews	4.8 out of 5 stars 2,038 Reviews
Global Trade Identification Number	00079191261293
Included Components	1 Quart, Pack of 6 Motor Oil
Item Type Name	Motor Oil
Liquid Volume	1 Quarts
Liquid volume	1 Quarts
Manufacturer	Castrol
Manufacturer Part Number	15D47C-6pk
Model Number	15979B
Number of Packs	1
Package information	Bottle
SAE J300 Viscosity Grade	10W-30
Size	32 Fl Oz (Pack of 1)
UPC	079191261293
Unit Count	32 Milliliters
Vehicle service type	Car
Viscosity Level	Low

Reviews

J**O

Buen producto

Excelente aceite

16.06.2026

D**A

LLEGO A TIEMPO Y BUENA CALIDAD

27.04.2026

M**6

high mileage low problems

great oil for my car

7.05.2026

S**D

Great value compared to parts stores.

Price comparable to others that were on sale at stores. Didn't have to drive to town had it delivered fast to my house. It was packaged for safety so no leaks.

18.05.2026

L**D

exactly as advertised

Complete synthetic oil for high milage engines at a a great value for the money.

12.07.2026

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